Average Bench: 118% (141st of 1003)

Based on 7,318 user benchmarks.  Models: NVMe PM951 NVMe SAMSU, PM951 NVMe SAMSUNG 256GB

Outstanding average bench

The Samsung PM951 NVMe PCIe M.2 256GB averaged 17.9% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the Samsung PM951 NVMe PCIe M.2 256GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Mixed IO Speed 340MB/s
Avg. 4K-64Thread Read Speed 768MB/s

Poor consistency

The range of scores (95th - 5th percentile) for the Samsung PM951 NVMe PCIe M.2 256GB is 68.8%. This is a particularly wide range which indicates that the Samsung PM951 NVMe PCIe M.2 256GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 221MB/s
Avg. Sequential Write Speed 259MB/s
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Average Bench

(Based on 7,318 samples)
Min Avg Max
606 Read 916 1,033
109 Write 259 308
164 Mixed 284 344
75.4 SusWrite 221 298
91.7% 420 MB/s
Min Avg Max
17.4 4K Read 36.7 41.6
44.1 4K Write 108 157
16.2 4K Mixed 30.9 39.5
152% 58.4 MB/s
Min Avg Max
281 DQ Read 768 987
106 DQ Write 259 312
130 DQ Mixed 340 423
296% 455 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
92GB free (System drive)
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 249 223 183 183 174 171 MB/s
Read 992
Write 290
Mixed 307
SusWrite 197
97% 446 MB/s
4K Read 41.8
4K Write 156
4K Mixed 36.4
192% 78 MB/s
DQ Read 945
DQ Write 286
DQ Mixed 402
352% 544 MB/s
195GB free (System drive)
Firmware: BXV76D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 291 293 294 293 294 293 MB/s
Read 922
Write 300
Mixed 325
SusWrite 293
101% 460 MB/s
4K Read 33.5
4K Write 120
4K Mixed 38.7
164% 64.1 MB/s
DQ Read 946
DQ Write 309
DQ Mixed 408
359% 554 MB/s
111GB free (System drive)
Firmware: BXV76D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 228 186 184 179 262 292 MB/s
Read 920
Write 133
Mixed 242
SusWrite 222
82% 379 MB/s
4K Read 38.3
4K Write 120
4K Mixed 29.8
160% 62.6 MB/s
DQ Read 908
DQ Write 250
DQ Mixed 123
209% 427 MB/s
120GB free (System drive)
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 250 265 260 279 292 295 MB/s
Read 918
Write 148
Mixed 295
SusWrite 274
89% 409 MB/s
4K Read 38
4K Write 113
4K Mixed 34.8
162% 62.1 MB/s
DQ Read 39.7
DQ Write 114
DQ Mixed 37.3
40% 63.8 MB/s
123GB free (System drive)
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 209 189 184 212 182 195 MB/s
Read 971
Write 234
Mixed 274
SusWrite 195
91% 419 MB/s
4K Read 36.8
4K Write 105
4K Mixed 31.9
152% 57.9 MB/s
DQ Read 38.1
DQ Write 258
DQ Mixed 31.9
59% 110 MB/s
18GB free (System drive)
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 95 71 74 60 62 66 MB/s
Read 522
Write 128
Mixed 196
SusWrite 71.3
50% 229 MB/s
4K Read 19.2
4K Write 49
4K Mixed 27.3
90% 31.8 MB/s
DQ Read 743
DQ Write 149
DQ Mixed 234
226% 375 MB/s
7,318 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 15,812,225 SSDs tested.

Typical PM951 NVMe PCIe M.2 256GB Builds (Compare 3,618 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 16%
Surfboard
Desktop
Desktop 61%
Destroyer
Workstation
Workstation 42%
Speed boat

System: Alienware 17 R3

EDIT WITH CUSTOM PC BUILDER

Popular PM951 NVMe PCIe M.2 256GB systems:

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Solid State Drive Rankings (Price vs Performance) July 2019 SSD Rankings.

Welcome to our 2.5" and M.2 SSD comparison. We calculate effective speed for both SATA and NVMe drives based on real world performance then adjust by current prices per GB to yield a value for money rating. Our calculated values are checked against thousands of individual user ratings. The customizable table below combines these factors to bring you the definitive list of top SSDs. [SSDrivePro]

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Group Test Results

  • Best user rated - User sentiment trumps benchmarks for this comparison.
  • Best value for money - Value for money is based on real world performance.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.

 Comments

Added n/a ago.

Excellent

23 months ago.

Fast as heck...at half speed I might add!


Your
opinion?
1003 Drives (Compared) Thousands of user benchmarks compiled into one comparison list.

See how consistently different SSDs perform with varying real world conditions. The charts also illustrate overall performance, popularity and rank.

 Frequently Asked Questions

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i7-8700K $350Nvidia GTX 1070 $400Samsung 850 Evo 250GB $104
AMD Ryzen 5 2600 $127Nvidia GTX 1060-6GB $250Samsung 850 Evo 500GB $103
AMD Ryzen 7 2700X $248Nvidia GTX 1080-Ti $808Samsung 850 Pro 256GB $97
HDDRAMUSB
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $68SanDisk Extreme 64GB $45
Seagate Barracuda 3TB (2016) $70G.SKILL Trident Z DDR4 3200 C14 4x16GB $607SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $37Corsair Vengeance LPX DDR4 3200 C16 2x8GB $78SanDisk Ultra Fit 32GB $12
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